The sperm and the egg cell's nuclei compete for size directly after fertilization and this is necessary for proper embryonic ...

High-resolution imaging reveals a large protein complex in egg cells that stores key developmental molecules. The structure ...

Moreover, they subsequently identified the same structure within the sperm cells of zebrafish and in mouse oocytes and sperm. Their findings were published today in Science. This has implications for ...

Embryo development starts when a single egg cell is fertilized and starts dividing continuously. Initially a chaotic cluster, it gradually evolves into a highly organized structure. Scientists have ...

Egg cells need to store large amounts of proteins and other molecules to support the earliest stages of development. But how ...

To understand why egg cells are more susceptible to errors, Wignall studies a football-shaped structure, called the spindle, which organizes genetic material before the egg divides. "The spindle is ...

The new method offers researchers a powerful new platform to investigate the molecular mechanisms that control oogenesis, the process by which egg cells develop, and lays important groundwork for ...